Use returned course to add to db.
Forget about add, go straight to commit.
Add SQLAlchemy logging.
-Add to remove_unit.
Fix "No course details" text and translation.
Ensure course units are ordered by course id.
Add Knowledge Area info to Unit.json().
Clean up js and minimize AJAX calls.
Remove SQL echo.
Rename files to match routing.
Fix table formatting.
Fix URLs and endpoints.
Clean up endpoints, URLs, and minimize db access.
Test involving elminating session.add().
Merge branch 'master' into herokutest
Reactivate SQLAlchemy echo.
Enable session.add().
Disable user last seen update.
Debug testing.
Sort unassigned units by unit id.